So welcome back, guys.
In this module we will going to learn inter Vlan routing interval and routing means that how the two
host machines present in different VLANs can communicate with each other.
So you can see in this small topology we have two host machines, Machine A and machine B.
Now you can see that machine A is present in Vlan 12, whereas Machine B is present in Vlan 11.
Right.
The network ID or the subnet ID for host machine A is 13 .1.1.0 slash 24, whereas the network ID for
host machine B is 14 .1.1.0 slash 24.
So you can see that host machine A and host machine B are present in different subnets.
But because we have configured different VLANs on this L2 switch, therefore both the subnets resides
on the same physical interface of an L3 router.
So our problem statement is that how the two host machines present in different VLANs can communicate
with each other?
So in this module we will going to discuss that, how the communication between the two machines present
in different VLANs of an L2 switch can be made possible.
So if you observe closely that the two host machines are present in different subnets, and in our discussion
of L3 routing, we have already learned that how the two machines present in different subnets can communicate
with each other using a normal traditional L3 routing steps.
So 70% or 80% of the concept in this module is exactly same as the traditional L3 routing.
But since villains are involved in this case, therefore steps will going to be slightly different from
the steps which we have already learned in our L3 routing module.